Ch 4 Collecting Data Review #1

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What is nonresponse bias?

Back

Nonresponse bias occurs when individuals selected for a survey do not respond, leading to a potential distortion of the results because the opinions of non-respondents may differ from those who participated.

Tags

CCSS.HSS.IC.B.3

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What is undercoverage in sampling?

Back

Undercoverage is a type of sampling bias that occurs when some groups in the population are left out of the sampling process, resulting in a sample that does not accurately represent the entire population.

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CCSS.HSS.IC.B.3

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What is response bias?

Back

Response bias refers to the tendency of respondents to answer questions inaccurately or falsely, often due to the wording of the questions or the social desirability of certain answers.

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CCSS.RL.5.6

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What is a convenience sample?

Back

A convenience sample is a non-probability sampling method where the sample is taken from a group of people easy to reach, which may not represent the broader population.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is a voluntary response sample?

Back

A voluntary response sample is a type of sampling where individuals can choose to participate, often leading to bias as those with strong opinions are more likely to respond.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

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What is the significance of sample size in surveys?

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Sample size is crucial in surveys as larger samples tend to provide more accurate and reliable results, reducing the margin of error and increasing the confidence in the findings.

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CCSS.HSS.IC.B.3

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What does it mean for a study to be biased?

Back

A study is considered biased if the results systematically favor one outcome over another, often due to flaws in the sampling method or data collection process.

Tags

CCSS.RL.11-12.6

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What is the difference between a population and a sample?

Back

A population is the entire group of individuals or instances about whom we hope to learn, while a sample is a subset of the population selected for the actual study.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Front

What is the purpose of random sampling?

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Random sampling aims to select individuals from a population in such a way that every individual has an equal chance of being chosen, which helps to eliminate bias.

Tags

CCSS.HSS.IC.B.3

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What is the role of surveys in data collection?

Back

Surveys are tools used to gather information from a group of individuals, allowing researchers to collect data on opinions, behaviors, or characteristics of a population.